While most armies in the world shun
their use, and military authorities exclude them from warfare, the technology to
produce biological and chemical weapons is widely available around the world.
{{U}} (67) {{/U}}, these weapons are cheap, easy to conceal, and very
{{U}} (68) {{/U}}. Since September 11, 2001, biological weapons
{{U}} (69) {{/U}} to have become the weapon of choice among the desperate
{{U}} (70) {{/U}} of the world. Some people are worried chemical
warfare may {{U}} (71) {{/U}}, which would bring an unbelievable disaster
to the whole world. Chemical weapons are {{U}} (72) {{/U}}in variety. Their effectiveness can be{{U}} (73) {{/U}} by several factors, including age, {{U}} (74) {{/U}}, weather conditions, and choice of dissemination. They include nerve agents, blister agents, and choking agents, all of {{U}} (75) A. Moreover B. But C. Therefore D. Otherwise 我来回答: 提交
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